xref: /freebsd/sys/powerpc/include/gdb_machdep.h (revision 641a6cfb86023499caafe26a4d821a0b885cf00b)
1 /*-
2  * Copyright (c) 2006 Marcel Moolenaar
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _MACHINE_GDB_MACHDEP_H_
30 #define	_MACHINE_GDB_MACHDEP_H_
31 
32 #define	PPC_GDB_NREGS4	(32 + 7 + 2)
33 #define	PPC_GDB_NREGS8	32
34 #define	PPC_GDB_NREGS16	32
35 
36 #define GDB_NREGS	(PPC_GDB_NREGS4 + PPC_GDB_NREGS8 + PPC_GDB_NREGS16)
37 #define	GDB_REG_PC	64
38 
39 #define	GDB_BUFSZ	(PPC_GDB_NREGS4 * 8 +	\
40 			 PPC_GDB_NREGS8 * 16 +	\
41 			 PPC_GDB_NREGS16 * 32)
42 
43 static __inline size_t
44 gdb_cpu_regsz(int regnum)
45 {
46 
47 	if (regnum >= 32 && regnum <= 63)
48 		return (8);
49 	if (regnum >= 71 && regnum <= 102)
50 		return (16);
51 	return (4);
52 }
53 
54 static __inline int
55 gdb_cpu_query(void)
56 {
57 
58 	return (0);
59 }
60 
61 void *gdb_cpu_getreg(int, size_t *);
62 void gdb_cpu_setreg(int, void *);
63 int gdb_cpu_signal(int, int);
64 
65 #endif /* !_MACHINE_GDB_MACHDEP_H_ */
66